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Clinical Trial Details — Status: Not yet recruiting

Administrative data

NCT number NCT03648749
Other study ID # LawsonHRI5264
Secondary ID 111861
Status Not yet recruiting
Phase N/A
First received
Last updated
Start date March 1, 2019
Est. completion date December 31, 2020

Study information

Verified date February 2019
Source Lawson Health Research Institute
Contact Scott Adams, PhD
Phone 519-661-2111
Email sadams@uwo.ca
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study will evaluate the effectiveness of a speech-to-noise feedback procedure for the treatment of hypophonia in Parkinson's disease. The procedure includes a device that records the sound intensity level of the wearer's speech and compares it to the noise level around them. The device will provide the wearer with feedback if their speech becomes too quiet for them to be heard by their listener.


Description:

This study will evaluate the effectiveness of a speech-to-noise feedback procedure for the treatment of hypophonia in Parkinson's disease. The procedure includes a device that records the sound intensity level of the wearer's speech and compares it to the noise level around them. The device will provide the wearer with feedback if their speech becomes too quiet for them to be heard by their listener.


Recruitment information / eligibility

Status Not yet recruiting
Enrollment 25
Est. completion date December 31, 2020
Est. primary completion date April 30, 2020
Accepts healthy volunteers No
Gender All
Age group 45 Years to 85 Years
Eligibility Inclusion Criteria:

- diagnosed with idiopathic Parkinson's disease and hypophonia by a neurologist at least 6 months prior to participation.

- stabilized on antiparkinsonian medication.

- good general health.

- pass a 40 decibel hearing screening.

- proficient enough in English to participate in speech testing.

Exclusion Criteria:

- history of stroke or an additional neurological or motor control disorder.

- history of speech impairment that is unrelated to Parkinson's disease.

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Speech-to-noise feedback
A target speech-to-noise level is specified and feedback about achievement of the target level is provided.

Locations

Country Name City State
Canada LawsonHRI London Ontario

Sponsors (2)

Lead Sponsor Collaborator
Lawson Health Research Institute University of Western Ontario, Canada

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary Average speech-to-noise ratio Average speech-to-noise ratio value will be obtained over a two-hour interval. Single two-hour visit.
Secondary Percent Speech Intelligibility Score (PSIS) PSIS is the percentage of words that can be correctly understood by a person listening (listener) to the participant's speech while they read sentences aloud. The PSIS ranges from 0% to 100%. This is a total score. Higher PSIS are considered better. The PSIS are obtained using communication partners (i.e. spouse) who listen and provide live repetitions of the spoken sentences. The spoken repetitions are transcribed by the investigators and compared to the printed reading material to calculate the percent of correctly transcribed words. The result is the PSIS referenced to a familiar listener (i.e. communication partner). The participant's spoken sentences are audio recorded and played to naïve listeners who provide written transcriptions of the participant's spoken sentences. The naïve listener transcribed sentences are compared to the printed reading material and the percent of correctly transcribed words is calculated. The result is the PSIS referenced to a naïve listener. Single two-hour visit.
Secondary Ratings of Experience with the Device Participants rate their device experience with 5 visual-analogue scales (VAS) for 5 parameters. Participants see a 10cm horizontal line with end points and place a vertical line for their rating. Left is a poorer rating and right is a better rating. Parameter 1 is 'physical comfort' with left as 'uncomfortable' and right as 'comfortable'. Parameter 2 is 'visual presentation' with left as 'unacceptable' and right as 'acceptable'. Parameter 3 is 'response to feedback' with 'bothersome' (left) and 'not bothersome' (right). Parameter 4 is 'speech intensity' with 'too quiet' (left) and 'too loud' (right). Parameter 5 is 'overall preference' with 'low preference' (left) and 'high preference' (right). Vertical lines placed on the VAS are measured by hand from the left end and expressed as percent of the total VAS line. The 5 device experience parameter ratings are expressed as separate percentage VAS scores and will not be used to calculate a total score. Single two-hour visit.
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